1161406056 has 64 divisors (see below), whose sum is σ = 2950859520. Its totient is φ = 380851200.

The previous prime is 1161406019. The next prime is 1161406067. The reversal of 1161406056 is 6506041611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052401 + ... + 1053503.

It is an arithmetic number, because the mean of its divisors is an integer number (46107180).

Almost surely, 2^1161406056 is an apocalyptic number.

It is an amenable number.

1161406056 is an abundant number, since it is smaller than the sum of its proper divisors (1789453464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161406056 is a wasteful number, since it uses less digits than its factorization.

1161406056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1161406056 is about 34079.4080934514. The cubic root of 1161406056 is about 1051.1419340495.

Adding to 1161406056 its reverse (6506041611), we get a palindrome (7667447667).

The spelling of 1161406056 in words is "one billion, one hundred sixty-one million, four hundred six thousand, fifty-six".